Austempered Cast Iron vs. Grade 7 Babbitt Metal
Austempered cast iron belongs to the iron alloys classification, while grade 7 Babbitt Metal belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is austempered cast iron and the bottom bar is grade 7 Babbitt Metal.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 270 to 490 | |
23 |
Elastic (Young's, Tensile) Modulus, GPa | 180 | |
26 |
Poisson's Ratio | 0.29 | |
0.4 |
Shear Modulus, GPa | 62 to 69 | |
9.1 |
Tensile Strength: Yield (Proof), MPa | 560 to 1460 | |
25 |
Thermal Properties
Latent Heat of Fusion, J/g | 280 | |
48 |
Melting Completion (Liquidus), °C | 1380 | |
270 |
Melting Onset (Solidus), °C | 1340 | |
240 |
Specific Heat Capacity, J/kg-K | 490 | |
150 |
Thermal Expansion, µm/m-K | 13 | |
26 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.9 | |
23 |
Density, g/cm3 | 7.5 | |
10 |
Embodied Carbon, kg CO2/kg material | 1.8 | |
4.4 |
Embodied Energy, MJ/kg | 25 | |
62 |
Embodied Water, L/kg | 48 | |
880 |
Common Calculations
Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 3970 | |
12 |
Stiffness to Weight: Axial, points | 13 | |
1.4 |
Stiffness to Weight: Bending, points | 25 | |
9.6 |
Alloy Composition
Aluminum (Al), % | 0 to 0.050 | |
0 to 0.0050 |
Antimony (Sb), % | 0 | |
14 to 16 |
Arsenic (As), % | 0 to 0.020 | |
0.3 to 0.6 |
Bismuth (Bi), % | 0 | |
0 to 0.1 |
Cadmium (Cd), % | 0 | |
0 to 0.050 |
Carbon (C), % | 3.4 to 3.8 | |
0 |
Chromium (Cr), % | 0 to 0.1 | |
0 |
Copper (Cu), % | 0 to 0.8 | |
0 to 0.5 |
Iron (Fe), % | 89.6 to 94 | |
0 to 0.1 |
Lead (Pb), % | 0 | |
71.9 to 76.4 |
Magnesium (Mg), % | 0 to 0.040 | |
0 |
Manganese (Mn), % | 0.3 to 0.4 | |
0 |
Molybdenum (Mo), % | 0 to 0.3 | |
0 |
Nickel (Ni), % | 0 to 2.0 | |
0 |
Phosphorus (P), % | 0 to 0.040 | |
0 |
Selenium (Se), % | 0 to 0.030 | |
0 |
Silicon (Si), % | 2.3 to 2.7 | |
0 |
Sulfur (S), % | 0 to 0.020 | |
0 |
Tin (Sn), % | 0 to 0.020 | |
9.3 to 10.7 |
Vanadium (V), % | 0 to 0.1 | |
0 |
Zinc (Zn), % | 0 | |
0 to 0.0050 |